1 Pack CR123 Rechargeable Battery Carded Chemistry: Lithium Voltage: 3 Capacity: 600mAh Measurements: 1.35" x 0.7" (34.29mm x 17.78mm) Additional Model #'s 1000-ULCR123R1 ULCR123R1 ULCR123R UPC: 076097841239 (ULCR123R) UPC: 076097962965 (ULCR123R1)